What did humans use before there was toilet paper?

I keep a few "shoe rags" that I get when I stay in a hotel. It's a small soft cloth mitt for wiping off your shoes. They're soft, and can be washed and re-used.

I call them Star Trek Rags. They help keep the Klingons off Uranus.
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Knowing where you're going is NOT the same as knowing how to get there.